81056899

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1237}}^1$

素因数の和:1315

約数の個数: 32

約数和(自身を含む): 108389376

約数和(自身を除く): 27332477

約数列:

[1, 7, 11, 23, 37, 77, 161, 253, 259, 407, 851, 1237, 1771, 2849, 5957, 8659, 9361, 13607, 28451, 45769, 65527, 95249, 199157, 312961, 320383, 503459, 1052687, 2190727, 3524213, 7368809, 11579557, 81056899]

約数ペア:

[(1, 81056899), (7, 11579557), (11, 7368809), (23, 3524213), (37, 2190727), (77, 1052687), (161, 503459), (253, 320383), (259, 312961), (407, 199157), (851, 95249), (1237, 65527), (1771, 45769), (2849, 28451), (5957, 13607), (8659, 9361)]